Free SEO tools

Checker

Image Alt Text Checker

Check alt text on any page: find missing alt tags, empty and filename alt, image links with no name, and the share of images with good alt. Export to CSV.

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Meta Tag Checker

Check any page's title tag, meta description, canonical, robots and viewport tags, and see exactly how it could look in Google search results.

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Meta Tag Generator

Generate the HTML head tags every page needs: title, meta description, canonical, robots, Open Graph and X (Twitter) card tags, with length checks and a share preview.

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SERP Snippet Preview

Preview how your page title and meta description may look in Google on desktop and mobile. Pixel-width meters show where text is likely to be cut off.

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Open Graph Checker

See how any page will look when shared on Facebook, LinkedIn, WhatsApp and X. Checks og:title, og:description, og:image and Twitter Card tags.

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Schema Markup Validator

Find and validate the schema.org JSON-LD on any page. Spot invalid JSON and missing required properties for Article, Product, FAQ, LocalBusiness and more.

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Schema Markup Generator

Create valid JSON-LD structured data for Local Business, Organization, FAQ, Article, Breadcrumb and Product pages. Fill in a form, copy the script and test it.

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Heading Checker (H1–H6)

See any page's H1–H6 heading outline as a tree. Flags missing or multiple H1s, skipped levels, empty and overlong headings, and compares the title with the H1.

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Indexability Checker (noindex, canonical, robots)

Can Google index this page? Checks status code, redirects, meta robots, X-Robots-Tag, canonical, robots.txt and the sitemap, then gives a clear verdict.

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XML Sitemap Checker

Find a site's XML sitemap, count its URLs, check it is listed in robots.txt and test a sample of its URLs for errors.

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XML Sitemap Generator

Turn a list of URLs or a CSV into a valid XML sitemap. Cleans and de-duplicates URLs, adds lastmod, and splits big sites into files with a sitemap index.

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robots.txt Tester

Test whether a URL is allowed or blocked by robots.txt for Googlebot, Bingbot, GPTBot, ClaudeBot, PerplexityBot and other crawlers.

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Robots.txt Generator

Create a robots.txt file in seconds: block private paths, add your sitemap, use the WordPress preset, and optionally opt out of AI training crawlers.

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Hreflang Checker

Check hreflang tags online: validate language and country codes, self-reference and x-default, and confirm every alternate page links back.

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Hreflang Tag Generator

Generate hreflang tags for every language and country version of a page, with x-default. Validated ISO codes, HTML link tags, XML sitemap and HTTP headers.

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Keyword Density Checker

See the most used words and 2–3 word phrases on any page, their density, and whether your main topic appears in the title, H1 and meta description.

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Keyword Grouping Tool

Group up to 10,000 keywords by shared terms and search intent. Upload a Search Console or Keyword Planner CSV, sum metrics per group, then export a CSV.

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UTM Builder

Build campaign URLs with utm_source, utm_medium, utm_campaign, utm_term and utm_content for Google Analytics 4. Presets for email, social, paid and QR codes.

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Broken Link Checker

Find dead links, 404s and broken images on a page and up to 10 pages it links to. See redirects, timeouts and anchor text, then export a CSV.

Also in Website health & speed Open Checker

Redirect Checker

Test the 301 redirects on http, https, www and non-www. See every hop with its status, Location and time, plus 302s, chains, loops and a one-hop verdict.

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htaccess Redirect Generator

Generate Apache .htaccess rules for 301 and 302 redirects, bulk URL lists, force HTTPS, www, trailing slashes and domain moves, with loop and chain warnings.

Also in Developer Open Tool

URL Slug Generator

Turn titles into clean, lowercase, hyphenated URL slugs. Removes accents, symbols and optional stop words, limits length and converts whole lists at once.

Also in Writing & text Open